Beloved Hussein, grandson of beloved Prophet Muhammed (pbuh), in Karbala where he was martyred. Battle of Karbala took place in the Islamic month of Muharram, year 61 AH of the Islamic calendar (October 10, 680 AD) in Karbala, present-day Iraq. Muawiyah bin Abu Sufian, the first ruler of the Ommayads, died in 60 AH (680 AD). In complete violation of Islamic principles, he appointed his son Yazid as successor, converting caliphate into dynasty rule. Hussein refused to endorse Yazid.